iphone creates staic on landline calls

dangleheart

macrumors 6502
Original poster
Jun 29, 2007
286
0
If I am on a landline call ( wired phone and not cordless ), my iPhone close by chirps into the landline call creating a static noise for 4 to 5 seconds. This is when it is locked, screen shut off and no activity should be going on. I do not have any periodic check of email etc.

Apple care folks did not have any answer to this. Does this happen to anyone? My other cell phones used to affect the AM radio if it is nearby which is understandable but this is the first time I have a cell phone introduce static onto a landline call.

Has anyone experienced this?
 

PoitNarf

macrumors 65816
May 28, 2007
1,217
2
Northern NJ
This is a common issue with GSM phones. Happens with my computer speakers at work all the time with my iPhone.

This is when it is locked, screen shut off and no activity should be going on. I do not have any periodic check of email etc.
Your iPhone is constantly communicating with the cell tower it is connected to at that moment. It needs to do this to properly route phone calls to your iPhone.
 

Big-TDI-Guy

macrumors 68030
Jan 11, 2007
2,606
13
I'm not sure it's unique to GSM, but the iphone does hammer out some serious RF. I've had a SHIELDED cd player pick up intense interference (while playing a CD), also including FM/AM interference. I've seen it fudge up my digital scope when it was too close by. (within 2 feet)

I've had CDMA phones do this (Verizon/Sprint), granted they were really far from the tower, and were transmitting hard. When there was good signal, they tended to not fudge with other consumer electronics much. (personally can only remember one instance of this)

Genuinely wish I my iphone was CDMA, and also on Verizon. I'd drop ATT in a femtosecond if Verizon got it.

FWIW, my ex-roommates Nextel would scramble my PC speakers when he was 3 floors down from me. I could always tell before his phone rang, because I'd hear the carrier ping radiating through the house. That guy could cook dinner with his phone.
 

dangleheart

macrumors 6502
Original poster
Jun 29, 2007
286
0
I used to have a Nextel phone which used to do the same to speakers nearby.

We have a Motorolla phone with Verizon service and that does not interfere with anything.

But I have never had any phones that interferes with the normal plain old corded telephone. So, do your iPhones do it also? If not, may be I can try changing my landline phone to something else. Do non speakerphones come out better than speaker phones in this regard. Any suggestions based on personal experiences?
 

Icebird

macrumors member
Jun 25, 2007
74
0
This is just a common problem with GSM phones. It happens to me at work all the time. I was even on the phone with a network maintenance tech once and it started doing it and he said, "sounds like a GSM phone is ringing", and it surprised me that it was so distinct to him.

I'm not sure if it was when I was using EDGE or if it just happens regularly though, but I've heard it's a GSM phone problem, not specific to the iPhone.
 
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